Internal-combustion engine.



T. RBUTER.

INTERNAL COMBUSTION ENGINE.

APPLICATION mum K0114, 1910.

1,008,863, Patented Nov. 14, 1911.

MTIJESSES .THEODOR REUTER, OF WINTERTHUR, SWITZERLAND.

Specification of Letters Patent.

INTERNAL-COMBUSTION ENGINE.

Patented Nov. 14, 1911.

Application'filed November 14, 1910. Serial No. 592,308.

To all whom it may concern:

Be it known that I, THEODOR Rnu'rnn, a

' citizen of the Swiss Republic, residing at Winterthur, 24, Obere Wielandstrasse, Switzerland, have invented certain new and useful Improvements in or Relating to Internal-Gombustion Engines; and I do hereby declare the followin to be a full, clear, and

exact description 0 the invention, such as will enable others skilled in the art to whlch it appertains to make and use the same.

This invention relates to Internal combustion engines of the known typein which the charge is compressed before being admitted to the engine cylinder, by means of a separate pump driven by an internal combustion engine independent of the maln englne.

When the auxiliary or chargingengine is itself of the same type as the mean eng ne it in turn requires a separate charging pump, or in the alternative has to work on a difi'erent system from that of the mam engine. According to this invention these disadvantages are avoided by making a single charging pump supply the working cyllnders both of the mainand the auxiliary or charging engines and regulating .the output of the charging pump simultaneously and jointly in both the main and auxiliary engines by suitably dividing the supply of an delivered. In that way it is no longer necessary to have a separate charging pump .for the auxiliary engine, and both internal combustion engines can work on the same system.

In the accompanying drawing, which shows diagrammatically an application of the invention, a is the main engine which receives its charge of compressed air or compressed air and gas, through the pipe I) from the air orworking charge pump 0. The latter is coupled to the auxiliary engine (1 which receives its charge from the same pump 0 by way of the connecting pipe 1. The pump 0 can have one or morstages, it can pump air alone, or air and fuel, either separately or as a mixture. The internal combustion engines a and d can have one or more cylinders, single or double acting, and work on the two stroke or four-stroke cycle. Further, they can, if desired, be arranged in different relations without departing from this invention. It is however preferable to arrange them separately, as in that case the work of the main engine a can be regulated by altering the number of revolutions of the auxiliary engine 03.

In the arrangement described control is effected by varying the output of the charging pump by simultaneously regulating the charge to both internal combustion engines.

The embodiment shown in the drawing comprises inlet valves 9, h associated with the cylinders of the auxiliary and main engines respectively, which valves regulate the quantity of fluid motive agent assing from the pump chamber i through t e pipes f, b, respectively. These valves are shifted simultaneously by means of a rod 70, and if said rod is moved in the direction of the arrow the valves g, h will be moved from the open position shown into a closed position, wherein they cut off communication between the amp and the respective engines. It wil thus be evident that both valves may be operated similarly and simultaneously by the same operating mechanism,

-but it must be understood that both the character of the admission or distributing devices g, h and the form of the operating means therefor are'susceptible of wide variation without departure from the invention. It is manifest, as previously stated, that these admission devices only regulate the quantity of fluid medium flowing through the connecting stood that the c istribution of such medium in the respective engine cylinders is effected by the distributing mechanism usually associated with engines of this type.

If, for instance, the driving engine when used on a vehicle traveling on a gradient requires a great deal of compressed air, the

engine driver simultaneously and jointly increases the supply of air to both cylinders, 1'. e. to that of the driving engine as well as to that of the auxiliary engine. It is true the driving engine Wlll. then work more slowly, on account of the gradient, but it will develop more power. The auxiliaryengine will, however, independently of the main engine, work much more quickly than before on account of the large supply of air and will therefore supply the extra quantity of compressed air both for itself andfor the driving engine. The same regulation is effected when the driving engine has for instance to run very quickly on the level. The power required will then be comparatively small, but the air consumption ipes, and it will be under- In this case, again, 1)

I l's'imultaneous and joint regulation-of t e air jsupply to both en 'ne cylinders accuratefregulation will be e ected duringthework- 1 ing without complicated and unreliable auxiliary apparatus, and' further an efiicient (control and instantaneous action, of the .stallation, the combination of a main en-.

fll'ifval ve gear will be obtained. The joint'and simultaneous regulation of, the air-supply to both en 'ne cylinders can be efiected by means. any mechanism either by'hand or automatically.

" ,I claim 1. In." an internal combustion engine installation, the combination of a main engine, an-auxilia engine, and a charging pump driven'iby. the

edawith the cylinders of both engines, theauxiliary engine and connect supplies of bothengines being regulabl multaneously. 1 H n 2. In an internalcombustionrengine in-,

stallatlon, the combination of a mam en- Cglmue, anauxiliary engine, a'charglng pump riven. by" the auxlliary engine to supply ,;fiui.d medium to both of said engines,-an d 1 a single means for regulating simulta- 'neously the supply of fluidmedium to both engines.

3. In an intei'nal combustion engine installation, the combination of a main engine, an auxihary engine, a chargingpump the,

moan

driven tlie auxiliary engine a; supply fluid medium to both engines, connections 4. In an internal combustion engine ingine, an auxiliary engine, a charging pump driven by the auxiliary engine, branch con- 'nections leading from said pump to the 'cyl indersof-the respective engines, regulating means to operate said regulatingdevices.

5. In'jan internal combustion engine in-' In testimony whereof have aflixied my signature, in presence of two witnesses.

THEODOR REUZTER.

itnesses:

ARTHUR J. Bunny, CARL Gunnnn.

with said connections for regulating the supply of both engines simi- "larly and simultaneously. Y

devices in said connections, and a slngle similarly and simulta- 

